P2BC4

Battery Charging System Positive Contactor B Circuit

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Problems with charging a high-voltage battery
Reduced power or inability to start
Errors in the operation of the hybrid system
Dashboard warnings

Causes

Open or short circuit in the contactor circuit
Positive contactor B fault
Relay or fuse problems
Control module malfunction
Wiring harness damage

How to Fix

Check continuity of contactor B
Check the condition of fuses and relays
Test the operation of contactor B
Check control signals from the module
Replace faulty components

Related codes

P2BC5 P2BC3 P0AA6